Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5120746 | Amine derivatives, salts thereof, process for preparing the same and an anti-ulcer agent containing the same | Shiro Hirai, Hiroshi Hirano, Hirotoshi Arai, Yasuo Kiba, Hisanari Shibata +3 more | 1992-06-09 |
| 4923882 | Novel amine derivatives, salts thereof and an anti-ulcer agent containing the same | Shiro Hirai, Hiroshi Hirano, Hirotoshi Arai, Yasuo Kiba, Hisanari Shibata +3 more | 1990-05-08 |
| 4871765 | Amine derivative and its salt and anti-ulcer agent containing the same | Shiro Hirai, Hiroshi Hirano, Hirotoshi Arai, Hisanari Shibata, Yoshikazu Kusayanagi | 1989-10-03 |
| 4643849 | Intermediates for urea and thiourea derivatives | Shiro Hirai, Hiroshi Hirano, Hirotoshi Arai, Yasuo Kiba, Hisanari Shibata +3 more | 1987-02-17 |